84491227 has 2 divisors, whose sum is σ = 84491228. Its totient is φ = 84491226.

The previous prime is 84491203. The next prime is 84491237. The reversal of 84491227 is 72219448.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 84491227 - 2¹¹ = 84489179 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (84491237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42245613 + 42245614.

It is an arithmetic number, because the mean of its divisors is an integer number (42245614).

Almost surely, 2^84491227 is an apocalyptic number.

84491227 is a deficient number, since it is larger than the sum of its proper divisors (1).

84491227 is an equidigital number, since it uses as much as digits as its factorization.

84491227 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 32256, while the sum is 37.

The square root of 84491227 is about 9191.9109547471. The cubic root of 84491227 is about 438.8039608094.

The spelling of 84491227 in words is "eighty-four million, four hundred ninety-one thousand, two hundred twenty-seven".